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embodying screws with non-uniform pitch

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  • CPC
  • G03B27/38
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Parent Industries

GPHYSICS G03Photography G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES ACCESSORIES THEREFOR G03B27/00Photographic printing apparatus

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G03B27/38embodying screws with non-uniform pitch
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Patents Grantslast 30 patents

  • Information Patent Grant

    3208338
    • Patent number 3,208,338
    • Issue date Sep 28, 1965
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3105410
    • Patent number 3,105,410
    • Issue date Oct 1, 1963
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2998749
    • Patent number 2,998,749
    • Issue date Sep 5, 1961
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2572992
    • Patent number 2,572,992
    • Issue date Oct 30, 1951
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2555460
    • Patent number 2,555,460
    • Issue date Jun 5, 1951
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2506347
    • Patent number 2,506,347
    • Issue date May 2, 1950
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2501462
    • Patent number 2,501,462
    • Issue date Mar 21, 1950
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2397668
    • Patent number 2,397,668
    • Issue date Apr 2, 1946
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    1645367
    • Patent number 1,645,367
    • Issue date Oct 11, 1927
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents